FIGURE 20 in The anatomy and diversity of the pterosaurian sternum

FIGURE 20. Hypothesised orientations and articulations of the pterosaurian sternum using Pteranodon as a model in A) anterior view and B) left lateral view based on Bennett, 2001 and C) based on Claessens et al., 2009. Note that A is shown at a larger size than B and C for clarity and shows only the sternum and coracoids, the coracoids are not shown in B or C as they would obscure much of the detail, but the upper part of the scapulocoracoids would articulate with the notarium. Abbreviations: co, coaracoids; dr, dorsal ribs; gs, gastralia; no, notarium; sa, scapula articulation; sr, sternal ribs.